IT HAS BITTEN OFF MORE THAN IT CAN CHEW

WHEN YOU HAVE STARTED DOING SOMETHING BUT IT IS IMPOSIBLE TO END IT, BECOUSE IT IS TOO BIG, TOO HARD, TOO DIFICULT... DON'T WORRY, YOU HAVE BITTEN OFF MORE THAN YOU CAN CHEW. THAT IDIOM IN SPANISH MEANS THAT: HAS COGIDO MÁS DE LO QUE PUEDES ABARCAR. THE DOG IN THE PICTURE IS TOO SMALL FOR SO BIG BONE, IT IS IMPOSSIBLE TO EAT IT, SO THE SHITH TZU DOG HAS BITTEN OFF MORE THAN IT CAN CHEW.